%0 Journal Article
%T 装配式柱座节点中M20高强度螺栓弯剪状态下常幅疲劳性能试验研究<br>Constant Amplitude Fatigue Behavior Test of M20 High-Strength Bolt under Bending and Shear in Prefabricated Column-Based Joint
%A 吉轩喆
%A 张家川
%A 雷宏刚
%J Hans Journal of Civil Engineering
%P 475-483
%@ 2326-3466
%D 2022
%I Hans Publishing
%R 10.12677/HJCE.2022.114050
%X 为研究高强度螺栓在弯剪状态下的常幅疲劳性能，本文借助AMSLER伺服液压疲劳试验机，以一种新型的方钢管柱-H型钢梁装配式柱座节点为载体，对装配式钢结构建筑中常用的10.9级、M20高强度螺栓进行了9组常幅疲劳试验，经拟合得到了其应力–寿命曲线并建立了疲劳设计方法。分析了高强度螺栓疲劳源区、扩展区和瞬断区的形貌特征，揭示了其疲劳破坏机理。<br />
In order to study the constant amplitude fatigue performance of high-strength bolts under bending and shear, this paper used a new type of H-shaped beam to square tube column joint as the carrier, carried out 9 groups of constant amplitude fatigue tests on 10.9 and M20 high-strength bolts which are commonly used in assembled steel structure buildings with the help of AMSLER fatigue testing machine. The stress-life curve was obtained by fitting the fatigue data and the fatigue design method was established. Finally, the morphological characteristics of fatigue source zone, extension zone and transient zone of high-strength bolt were analyzed, and the fatigue failure mechanism was revealed.
%K M20高强度螺栓，常幅疲劳，S-N曲线，梁柱节点<br>M20 High-Strength Bolts
%K Constant Amplitude Fatigue
%K S-N Curve
%K Beam-Column Joint
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=50008